VizieR

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VizieR

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I/340/ucac5 UCAC5 Catalogue (Zacharias+ 2017)
Fifth U.S. Naval Observatory CCD Astrograph Catalog (original column names in green) (107758513 rows)
  -c=226.7185456 +70.4575492, eq=J2000, rs=2
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Note: UCAC5 document

ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (226.7185456+70.4575492)[FK5/J2000], at Epoch of catalog (EPucac) (pos.angDistance)
_RAJ200015 06 52.452024 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra)
_DEJ2000+70 27 27.24145 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec)
_RAB195015 06 36.363243 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra)
_DEB1950+70 38 55.47974 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec)
_Glon108.264658246 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+42.604521752 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)

ira226.7185456 deg (i) UCAC right ascension (J2000) at epoch "EPucac" on Gaia reference frame (ira) (pos.eq.ra;meta.main)
idc+70.4575492 deg (i) UCAC declination (J2000) at epoch "EPucac" on Gaia reference frame (idc) (pos.eq.dec;meta.main)
srcid1695191327937585920  Gaia source ID (srcid) (meta.id;meta.main)
rag226.7185303 deg Gaia right ascension (ICRS) at epoch 2015.0 (rag) (Note 1)   (pos.eq.ra)
erg 0.3 mas rms uncertainty on RAgaia (erg) (Note 1)   (stat.error)
dcg 70.4574878 deg Gaia declination (ICRS) at epoch 2015.0 (dcg) (Note 1)   (pos.eq.dec)
edg 0.2 mas rms uncertainty on DEgaia (edg) (Note 1)   (stat.error)
flg2   [1/3] TGAS/NOMAD flag (flg) (Note 2)   (meta.code)
nu 1  Number of images used for mean position (nu) (meta.number)
epu2003.386 yr UCAC epoch (epu) (time.epoch)
pmur -1.6 mas/yr UCAC/Gaia proper motion in RA*cosDE (pmur) (pos.pm;pos.eq.ra)
pmer 14.0 mas/yr rms uncertainty on pmRA (pmer) (stat.error;pos.pm;pos.eq.ra)
pmud -19.0 mas/yr UCAC/Gaia proper motion in DE (pmud) (pos.pm;pos.eq.dec)
pmed11.3 mas/yr rms uncertainty on pmDE (pmed) (stat.error;pos.pm;pos.eq.dec)
gmag16.712 mag Gaia G magnitude (gmag) (phot.mag;em.opt.R)
umag16.825 mag Means UCAC model magnitude (umag) (phot.mag;em.opt)
rmag16.320 mag Photographic R magnitude from NOMAD (rmag) (phot.mag;em.opt.R)
jmag30.000 mag 2MASS J magnitude (jmag) (phot.mag;em.IR.J)
hmag30.000 mag 2MASS H magnitude (hmag) (phot.mag;em.IR.H)
kmag30.000 mag 2MASS K magnitude (kmag) (phot.mag;em.IR.K)
  
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